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公开(公告)号：US11885774B2
公开(公告)日：2024-01-30
申请号：US17058017
申请日：2019-05-31
发明人： Yves Gamache , André Lamontagne , Frédéric Bédard
IPC分类号： G01N30/20 , B01D15/10 , F16K11/065 , F16K11/074 , F16K49/00
CPC分类号： G01N30/20 , B01D15/10 , F16K11/0655 , F16K11/0743 , F16K49/002 , G01N2030/202 , G01N2030/208
摘要： A chromatography valve for use in fluid analysis and chromatography applications is provided. The valve includes a first body having passages extending therethrough and opening on a flat face of the first body at respective passage ports. The valve also includes a second body engaged with the first body in a sealed relationship, whereby one of the first and second bodies is movable relative to the other one between two or more positions for controlling fluid circulation through the passages. The second body includes at least one cartridge receiving cavity for receiving at least one cartridge removably provided therein. The cartridge has channel(s) for channeling fluid of pairs of the passage ports, depending on the position of the first body relative to the second body, thereby channeling fluid through selected ones of the passages via the at least one channel. A method of operating the valve is also provided.
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公开(公告)号：US20230028446A1
公开(公告)日：2023-01-26
申请号：US17785984
申请日：2020-12-16
发明人： Yves Gamache , André Lamontagne , André Cliche
摘要： A diaphragm valve for gas analysis applications is provided. The valve includes a valve cap provided with a plurality of process conduits extending therethrough, a valve body engageable with the valve cap and having a body interface provided with a recess, a diaphragm positioned between the valve cap and valve body and having a process groove for circulating fluid therein, the process groove engaging the recess, a plunger assembly provided within the valve body, the plunger assembly comprising a plurality of plungers movable between a closed position wherein the plunger engages the diaphragm, and an open position wherein the plunger is spaced from the diaphragm, and an actuating assembly comprising a gas inlet to allow the injection of actuating gas therein, the actuating assembly comprising a purging system for purging a region located between the diaphragm and the body interface, whereby the actuating gas is used for purging the region.
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公开(公告)号：US11474043B2
公开(公告)日：2022-10-18
申请号：US17045399
申请日：2019-04-05
发明人： Yves Gamache , André Lamontagne
IPC分类号： G01N21/67
摘要： There is provided a method for measuring a composition of a gas circulating through a plasma-based detector, the plasma-based detector having a discharge chamber defining an internal volume and having discharge electrodes configured to apply a plasma-generating field across the discharge chamber. The method includes ramping a voltage until it reaches a breakdown voltage to generate a plasma, detecting the presence of the plasma, determining a pressure based on the breakdown voltage upon detection of the presence of the plasma, operating the detector at an operation voltage greater than the breakdown voltage, performing measurement(s) on the plasma, generating a detector signal based the measurement(s) and compensating the detector signal based on the determined pressure to obtain a compensated detector signal, the compensated detector signal being representative of the composition of the gas. A plasma-based detector for measuring the composition of the gas is also provided.
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公开(公告)号：US20220030693A1
公开(公告)日：2022-01-27
申请号：US17414036
申请日：2019-12-20
发明人： Yves GAMACHE , André Lamontagne
IPC分类号： H05H1/24
摘要： There is provided a compound electrode assembly for generating a plasma in a plasma chamber of a plasma discharge device. The compound electrode assembly includes a casing, a discharge electrode and a sealing compound. The casing is made of a dielectric material and includes at least one side wall and an end wall defining a closed end. The discharge electrode is mounted in the casing and is bonded to the end wall. The sealing compound surrounds the discharge electrode and extends within the casing.
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公开(公告)号：US11788994B2
公开(公告)日：2023-10-17
申请号：US17785984
申请日：2020-12-16
发明人： Yves Gamache , André Lamontagne , André Cliche
CPC分类号： G01N30/20 , F16K11/022 , F16K15/184 , F16K11/20 , G01N2030/205 , Y10T137/4259 , Y10T137/87249
摘要： A diaphragm valve for gas analysis applications is provided. The valve includes a valve cap provided with a plurality of process conduits extending therethrough, a valve body engageable with the valve cap and having a body interface provided with a recess, a diaphragm positioned between the valve cap and valve body and having a process groove for circulating fluid therein, the process groove engaging the recess, a plunger assembly provided within the valve body, the plunger assembly comprising a plurality of plungers movable between a closed position wherein the plunger engages the diaphragm, and an open position wherein the plunger is spaced from the diaphragm, and an actuating assembly comprising a gas inlet to allow the injection of actuating gas therein, the actuating assembly comprising a purging system for purging a region located between the diaphragm and the body interface, whereby the actuating gas is used for purging the region.
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公开(公告)号：US11602039B2
公开(公告)日：2023-03-07
申请号：US17414036
申请日：2019-12-20
发明人： Yves Gamache , André Lamontagne
IPC分类号： H05H1/24
摘要： There is provided a compound electrode assembly for generating a plasma in a plasma chamber of a plasma discharge device. The compound electrode assembly includes a casing, a discharge electrode and a sealing compound. The casing is made of a dielectric material and includes at least one side wall and an end wall defining a closed end. The discharge electrode is mounted in the casing and is bonded to the end wall. The sealing compound surrounds the discharge electrode and extends within the casing.
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